#声明一个字典

dict1 = {"boss":'王晶晶','Teacher':'张江','banzhang':'娄艺潇'}
#in
res = 'boss' in dict1


#not in
res = 'Teacher' not in dict1



#序列函数
dict2 = {"A":'安南',"C":'张江',"H":'冯玉华'}
print(dict2)

print(len(dict2))	#3


res = max(dict2)	#H
res = min(dict2)	#A
print(res)














